Comparison

Greatek HD PRO vs Estimate Maker Flex

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Greatek HD PRO

This application allows remote viewing and recording of surveillance systems, including DVRs, HVRs, and IP cameras. It offers real-time image access, audio functions, and digital zoom, all within a user-friendly Portuguese interface.

Highlights
  • View up to 16 cameras simultaneously
  • Real-time SD and HD image viewing
  • Record photos and videos directly to mobile
  • Audio capture and playback
  • Digital zoom and PTZ camera control
  • Playback recorded footage
Features
Read full description

Experimente o novo Aplicativo GREATEK HD+ PRO para IOS. Desenvolvido especificamente para funcionar com DVRs, HVRs e câmeras IPs, este aplicativo Greatek HD+ PRO visualiza e grava remotamente, e em tempo real, as imagens do seu sistema de monitoramento. Possui uma interface amigável, de fácil utilização e em português. O Greatek HD+ PRO possui diversas funcionalidades: - Abre até 16 câmeras ao mesmo tempo; - Função que permite visualizar imagens em SD e HD; - Visualização das imagens em tempo real; - Gravação de imagens (Foto e Vídeo) diretamente no celular; - Função de áudio, captura e reprodução; - Zoom digital; - Controle para câmeras PTZ (speed dome); - Reprodução de imagens gravadas no dispositivo; - Reprodução de imagens gravadas no HVR; - Compatível com câmeras IPs; Compatibilidade: - Compatível com DVRs Greatek; - Compatível com HVRs Greatek; - Compatível com Câmeras IP Greatek; Suporte técnico através dos contatos: - WhatsApp: 12 99100-6131 - E-mail: suporte@greatek.com.br

About

Estimate Maker Flex

Create and send professional estimates quickly and easily. Convert estimates to invoices with a single tap. Customize titles, currencies, and date formats for a personalized touch. Works offline and supports multiple templates.

Highlights
  • Create and send estimates
  • Convert estimates to invoices
  • Customizable titles and subtitles
  • Multi-currency support
  • Multiple date formats
  • Offline functionality
  • Professional templates
Features
Read full description

Create and send professional estimates on the spot. Turn estimates into invoices by a single tap. Close more business deals. How it works * Enter your info * Add customers manually or from Contacts * Add your products / services After that, you can create and send professional estimates instantly. Flexibility * Manually edit titles (e.g. Estimate -> estimación, Quote) * Manually edit subtitles (e.g. Billing address -> Bill to, Signature -> Approved by) * Multi-currencies (e.g. \$, £, ... Manually enter your currency code) * Date format (e.g. 04/18/2019, 18/04/2019, 18/Apr/2019) * Works without the internet * Import contacts from your existing contacts or manually create them * Payment term set up based on each customer (7 days by default) * Decimal hours or quantity supported * Five professionally designed beautiful templates * Delete items (e.g. Estimates, products, customers) by swiping to the left * Edit existing documents * Add signature and date on the spot * Icon, Signature, Note, Other comments fields won't appear if nothing is entered * Preview estimates before sending them as a PDF * Send as a PDF or print wirelessly * Create 5 estimates for free Professional Features * Add business registration name (ABN etc.) and number * Tax, GST, VAT set up (e.g. No tax, single tax, compound tax) * Add discount (Actual \$ or %) * Payment terms (Immediate, 7 days, 14 days, 21 days,... up to 180 days) * Add your company logo ### Mobility * Send directly from iPhone and iPad * Your personal estimate system in your pocket ### Upgrade to Subscription Version The subscription version offers cloud sync and backup features so that you can save all the info in our highly secured cloud services and share the same data across multiple iOS devices. Upgrading to the subscription version requires auto-renewal subscription. Payment will be charged to your Apple ID account at the confirmation of purchase. The subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your App Store account settings after purchase. Links to Your Privacy Policy and Terms of Use: http://www.btoj.com.au/privacy.html http://www.btoj.com.au/terms.html Please feel free to contact us for anything. Simplify your life now.

Screenshots

Greatek HD PRO4 screens
Estimate Maker Flex4 screens

Verdict

The call

The clearest difference is review sentiment: Estimate Maker Flex at 97% against Greatek HD PRO's 0%. Estimate Maker Flex also leads on rating (4.8 vs 3.8) and update cadence (every 8 days vs every 7 months). Greatek HD PRO's advantage is in-app purchases (none vs 2) and iOS requirement (11.0 vs 13.0). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Estimate Maker Flex sells 2 in-app purchases, starting at $5.99 per month. Greatek HD PRO asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Estimate Maker Flex holds the better App Store score, 4.8 against 3.8. That said, the two scores are not equally well evidenced: Estimate Maker Flex has 101 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of Greatek HD PRO's written reviews are positive against 97% of Estimate Maker Flex's.

UpkeepUpdate frequency

Greatek HD PRO ships an update every 7 months, Estimate Maker Flex every 8 days. The most recent releases landed on October 21, 2026 and October 18, 2026 respectively.

Scorecard7 real differences · 3 level
Greatek HD PRO versus Estimate Maker Flex: the parameters behind the verdict, then further details
ParameterGreatek HD PROEstimate Maker Flex
PriceFreeFree
Rating3.8 (4 ratings)4.8 (101 ratings) — better
Positive reviews0.0% of reviews97.2% of reviews — better
Number of ratings4101 — better
Update frequencyEvery 7 monthsEvery 8 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better13.0
Further details — not scored
Size47 MB99 MB
Age rating4+4+
DevelopergreatekB TO J PTY LTD

Customer experience

Greatek HD PRO

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews51 reviews
Positive0.0%
Neutral17.6%
Negative82.4%

Estimate Maker Flex

All ratings101 ratings
Positive95.0%
Neutral4.0%
Negative1.0%
Written reviews71 reviews
Positive97.2%
Neutral0.0%
Negative2.8%

User reviews

Greatek HD PRO

From 4 App Store ratings

Room to improve

  • 👎 App is unstable and crashes
  • 👎 Constant update requests without updates
  • 👎 Cameras freeze or become unresponsive
  • 👎 Difficult manual updates required
  • 👎 Poor remote access functionality

Estimate Maker Flex

From 101 App Store ratings

What we love

  • 👍 Easy to use
  • 🚀 Efficient for creating estimates
  • 👍 Practical and functional
  • 👍 Professional-looking estimates
  • 👍 Helpful for business growth

Room to improve

  • ❓ Translation not complete
  • ❓ A little difficult to understand initially
  • 🐛 App not opening

Bugs and requests

Greatek HD PRO

Reported bugs

12 issues
  • App requests updates that are not available
  • Cameras freeze when trying to expand
  • App closes immediately after opening
  • App closes when left in background
  • Playback has no forward/backward functionality
Show 7 more
  • App requires reinstallation to access cameras
  • Devices are not saved
  • App closes automatically during use
  • Cannot zoom in on cameras
  • App is unstable and closes frequently
  • Cannot see real-time image when camera is expanded
  • Cannot choose number of channels, stuck on channel 1

Requested features

8 requests
  • Improve app stability and prevent crashes
  • Fix constant update prompts for non-existent updates
  • Enable smooth camera playback with forward/backward controls
  • Simplify the update process to be in-app
  • Ensure devices remain connected after backgrounding
Show 3 more
  • Allow selection of number of channels
  • Provide proper customer support
  • Remove update prompts if no update is available

Estimate Maker Flex

Reported bugs

1 issue
  • App not opening

Requested features

2 requests
  • Add option to get client signature
  • Add signature of the person who made the estimate

In-app purchases

None

Greatek HD PRO

No in-app purchases

2 purchases

Estimate Maker Flex

Subscriptions2
  • 1 Month Subscription$5.991 Month
  • 1 Year Subscription$49.991 Year

Questions

Is Greatek HD PRO free?
Greatek HD PRO is free to download, with no in-app purchases.
Is Estimate Maker Flex free?
Estimate Maker Flex is free to download, with in-app purchases available.
Which has better reviews, Greatek HD PRO or Estimate Maker Flex?
Estimate Maker Flex is rated higher. Greatek HD PRO averages 3.8 out of 5 from 4 ratings, while Estimate Maker Flex averages 4.8 from 101 ratings.
Do Greatek HD PRO or Estimate Maker Flex have ads?
Neither Greatek HD PRO nor Estimate Maker Flex shows ads.
Which is updated more often, Greatek HD PRO or Estimate Maker Flex?
Greatek HD PRO ships an update every 7 months, and Estimate Maker Flex every 8 days. Most recently, Greatek HD PRO was updated on October 21, 2026 and Estimate Maker Flex on October 18, 2026.

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